Animal Defenses Preschool–K Hide A Butterfly Preschool–K Ant Homes Under the Ground Preschool–1 Ladybugs Preschool–1 Mother Opossum and Her Babies Preschool–1 Penguins And Their Young Preschool–1 Tree Homes Preschool–1 Eggs Eggs Everywhere Preschool–1 FAMILY MATH for Young Children: Comparing for parents and teachers of children ages grades PreK-2 Sifting Through Science Kindergarten–2 Buzzing A Hive Kindergarten–3 Rocky Seashore Grade 1 Frog Math: Predict, Ponder, Play Kindergarten–3 Treasure Boxes Kindergarten–3 Group Solutions, Too! Kindergarten–4 Group Solutions Kindergarten–4 Bubble Festival Kindergarten–6 Build It! Festival Kindergarten–6 Investigating Artifacts Kindergarten–6 Terrarium Habitats Kindergarten–6 FAMILY MATH II: Achieving Success in Mathematics for parents and teachers of children Grades K-6 FAMILY MATH for parents and teachers of children grades K-8 Matemática Para La Familia Grados K-8 Biological Basis of Thinking (Video) Grades K-12 MARE Guide to Marine Science Field Trips: Central California Grades K-12 Planetarium Activities for Student Success (PASS) Grades K-12 Early Adventures in Algebra: Featuring Zero the Hero grades 1-2 Involving Dissolving Grades 1–3 Liquid Explorations Grades 1–3 Matter: Solids, Liquids & Gases Grades 1–3 Secret Formulas Grades 1–3 Sandy Beach Grade 2 On Sandy Shores Grades 2–4 Aquatic Habitats Grades 2–6 Mystery Festival Grades 2–8 Star Maker Planetarium Kit Age 8 and up Math on the Menu Grades 3–5 Algebraic Reasoning: Professor Arbegla Introduces Variables and Functions Grades: 3—5 In All Probability Grades 3–6 Electric Circuits: Inventive Physical Science Activities Grades 3—6 The "Magic" of Electricity Grades 3–6 Schoolyard Ecology Grades 3–6 Solids, Liquids, and Gases Grades 3–6 Communication (Folio) Grades 3-8 Environmental Energy (Folio) Grades 3-8 Environments (Folio) Grades 3-8 Kitchen Interactions (Folio) Grades 3-8 Magnetism and Electricity (Folio) Grades 3-8 Measurement (Folio) Grades 3-8 Mixtures and Solutions (Folio) Grades 3-8 Scientific Reasons (Folio) Grades 3-8 Structures of Life (Folio) Grades 3-8 Out of print. Communication (Video) Grades 3-8 Environmental Energy (Video) Grades 3-8 Kitchen Interactions (Video) Grades 3-8 Magnetism and Electricity (Video) Grades 3-8 Mixtures and Solutions (Video) Grades 3-8 Scientific Reasoning (Video) Grades 3-8 Outdoor Biology Instructional Strategies (OBIS) Ages 10-15 Limbericks Age 10 and up Kelp Forest Grade 4 Of Cabbages and Chemistry Grades 4–8 Crime Lab Chemistry Grades 4–8 Fingerprinting Grades 4–8 Hot Water and Warm Homes from Sunlight Grades 4–8 Microscopic Explorations Grades 4–8 Stories in Stone Grades 4–8 Moons of Jupiter Grades 4–8 Oobleck: What Do Scientists Do? Grades 4–8 Get It Together Grades 4-12 Háganlo Juntos Grades 4-12 Off & Running Grades 4-12 Bubble-ology Grades 5–8 Color Analyzers Grades 5–8 Earth, Moon, and Stars Grades 5–8 Environmental Detectives Grades 5-8 FAMILY MATH Middle School Algebraic Reasoning and Number Sense for parents and teachers of children grades 5-8 The Journey—Through Middle School Math for parents and teachers of children Grades 5–8 Life through Time: Evolutionary Activities for Grades 5-8 Grades 5-8 Math Around the World Grades 5–8 Messages from Space Grades 5–8 Ocean Currents Grades 5-8 Only One Ocean Grades 5-8 Paper Towel Testing Grades 5–8 Acid Rain Grades 6–8 Chemical Reactions Grades 6–8 Convection: A Current Event Grades 6–8 Discovering Density Grades 6–8 Dry Ice Investigations Grades 6–8 Experimenting with Model Rockets Grades 6–8 Invisible Universe: The Electromagnetic Spectrum from Radio Waves to Gamma Rays Grades 6-8 Learning About Learning Grades 6–8 Living with a Star: From Sunscreen to Space Weather Grades 6-8 More Than Magnifiers Grades 6–8 Plate Tectonics: The Way the Earth Works Grades 6–8 The Real Reasons for Seasons Grades 6–8 River Cutters Grades 6–8 EQUALS Investigations: Flea-Sized Surgeons Grades 6-9 EQUALS Investigations: Growth Patterns Grades 6-9 EQUALS Investigations: Remote Rulers Grades 6-9 EQUALS Investigations: Scatter Matters Grades 6-9 EQUALS Investigations: Telling Someone Where to Go Grades 6-9 Teen Theatre Recipes for Success Leaders' Handbook Grades 6-12 Global Warming & the Greenhouse Effect Grades 7–8 CD-ROM with E-Books and Software grades 9-12 GSS E-Book Set Download grades 9-12 A New World View grades 9-12 Climate Change grades 9-12 Ecosystem Change grades 9-12 Life and Climate grades 9-12 Energy Flow grades 9-12 Ozone grades 9-12 Losing Biodiversity grades 9-12 Energy Use grades 9-12 Population Growth grades 9-12 GSS-Full Package grades 9-12 Finding Features Grades 9-12 Introduction to Image Processing Grades 9-12 Measuring Brightness Grades 9-12 Measuring Color Grades 9-12 Measuring Distance Grades 9-12 Measuring Size Grades 9-12 Searching for Supernovae Grades 9-12 Teachers' Reference Guide Grades 9-12 HOU High School CD-ROMS HOU High School Teacher Packages HOU Explorer: Observatory Simulation Software HOU Telescope Image Access System Shapes, Loops & Images All Ages The Wizard’s Lab All Ages Teachers' Voices, Teachers' Wisdom Teachers, parents Teacher Guides Teacher Guides Free Download The Architecture of Reform: GEMS and National Standards The GEMS Leader's Handbook Parent Partners: Workshops to Foster School/ Home/Family Partnerships Spark Your Child's Success in Math and Science: Practical Advice for Parents The GEMS Teacher's Handbook Insights & Outcomes: Assessments for Great Explorations in Math and Science Once Upon a GEMS Guide: Connecting Young People's Literature to Great Explorations in Math and Science The Rainbow of Mathematics Science and Math Explorations for Young Children Updating the Periodic Table for Instruction: Professor Glenn T. 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